private void TextureCopy(NvGpuVmm Vmm, NvGpuPBEntry PBEntry)
{
CopyOperation Operation = (CopyOperation)ReadRegister(NvGpuEngine2dReg.CopyOperation);
bool SrcLinear = ReadRegister(NvGpuEngine2dReg.SrcLinear) != 0;
int SrcWidth = ReadRegister(NvGpuEngine2dReg.SrcWidth);
int SrcHeight = ReadRegister(NvGpuEngine2dReg.SrcHeight);
int SrcPitch = ReadRegister(NvGpuEngine2dReg.SrcPitch);
int SrcBlkDim = ReadRegister(NvGpuEngine2dReg.SrcBlockDimensions);
bool DstLinear = ReadRegister(NvGpuEngine2dReg.DstLinear) != 0;
int DstWidth = ReadRegister(NvGpuEngine2dReg.DstWidth);
int DstHeight = ReadRegister(NvGpuEngine2dReg.DstHeight);
int DstPitch = ReadRegister(NvGpuEngine2dReg.DstPitch);
int DstBlkDim = ReadRegister(NvGpuEngine2dReg.DstBlockDimensions);
TextureSwizzle SrcSwizzle = SrcLinear
? TextureSwizzle.Pitch
: TextureSwizzle.BlockLinear;
TextureSwizzle DstSwizzle = DstLinear
? TextureSwizzle.Pitch
: TextureSwizzle.BlockLinear;
int SrcBlockHeight = 1 << ((SrcBlkDim >> 4) & 0xf);
int DstBlockHeight = 1 << ((DstBlkDim >> 4) & 0xf);
long SrcAddress = MakeInt64From2xInt32(NvGpuEngine2dReg.SrcAddress);
long DstAddress = MakeInt64From2xInt32(NvGpuEngine2dReg.DstAddress);
long SrcKey = Vmm.GetPhysicalAddress(SrcAddress);
long DstKey = Vmm.GetPhysicalAddress(DstAddress);
bool IsSrcFb = Gpu.Engine3d.IsFrameBufferPosition(SrcKey);
bool IsDstFb = Gpu.Engine3d.IsFrameBufferPosition(DstKey);
TextureInfo SrcTexture()
{
return(new TextureInfo(
SrcAddress,
SrcWidth,
SrcHeight,
SrcPitch,
SrcBlockHeight, 1,
SrcSwizzle,
GalTextureFormat.A8B8G8R8));
}
TextureInfo DstTexture()
{
return(new TextureInfo(
DstAddress,
DstWidth,
DstHeight,
DstPitch,
DstBlockHeight, 1,
DstSwizzle,
GalTextureFormat.A8B8G8R8));
}
//TODO: fb -> fb copies, tex -> fb copies, formats other than RGBA8,
//make it throw for unimpl stuff (like the copy mode)...
if (IsSrcFb && IsDstFb)
{
//Frame Buffer -> Frame Buffer copy.
Gpu.Renderer.FrameBuffer.Copy(
SrcKey,
DstKey,
0,
0,
SrcWidth,
SrcHeight,
0,
0,
DstWidth,
DstHeight);
}
if (IsSrcFb)
{
//Frame Buffer -> Texture copy.
Gpu.Renderer.FrameBuffer.GetBufferData(SrcKey, (byte[] Buffer) =>
{
TextureInfo Src = SrcTexture();
TextureInfo Dst = DstTexture();
if (Src.Width != Dst.Width ||
Src.Height != Dst.Height)
{
throw new NotImplementedException("Texture resizing is not supported");
}
TextureWriter.Write(Vmm, Dst, Buffer);
});
}
else if (IsDstFb)
{
//Texture -> Frame Buffer copy.
const GalTextureFormat Format = GalTextureFormat.A8B8G8R8;
byte[] Buffer = TextureReader.Read(Vmm, SrcTexture());
Gpu.Renderer.FrameBuffer.SetBufferData(
DstKey,
DstWidth,
DstHeight,
Format,
Buffer);
}
else
{
//Texture -> Texture copy.
TextureInfo Src = SrcTexture();
TextureInfo Dst = DstTexture();
if (Src.Width != Dst.Width ||
Src.Height != Dst.Height)
{
throw new NotImplementedException("Texture resizing is not supported");
}
TextureWriter.Write(Vmm, Dst, TextureReader.Read(Vmm, Src));
}
}